diff --git a/contrib/ds-algorithms/index.md b/contrib/ds-algorithms/index.md
index 2263620..b18b79a 100644
--- a/contrib/ds-algorithms/index.md
+++ b/contrib/ds-algorithms/index.md
@@ -13,4 +13,6 @@
 - [Stacks in Python](stacks.md)
 - [Sliding Window Technique](sliding-window.md)
 - [Trie](trie.md)
+- [Two Pointer Technique](two-pointer-technique.md)
+- [Hashing through Linear Probing](hashing-linear-probing.md)
 - [Dijkstra's Algorithm](Dijkstra's_algorithm.md)